Titlebook: Advances in Soil Science; Volume 5 B. A. Stewart Conference proceedings 1986 Springer-Verlag New York Inc. 1986 Phosphor.growth.nitrogen.po

BRIEF

Conference proceedings 1986o about 2. 1%. However, in many developing countries almost half the people are under 15 years of age, poised to enter their productive and reproductive years. The challenges to produce enough food for this growing population will remain great Even more challenging is growing the food in the areas o

PLAYS

眉毛

簡潔

Pulmonary-Veins

Physical Properties and Processes of Puddled Rice Soils,rts of the world—the United States, Australia, parts of Europe, and some Asian countries—rice land is prepared dry and flooded later (Savant and De Datta, 1982). Puddling, in general, refers to the destruction of soil aggregates into ultimate soil particles at a moisture content near saturation. Bue

苦笑

Phosphorus Interactions with Other Nutrients and Lime in Field Cropping Systems,it to devote much attention to the interplay between nutrients in relation to yield enhancement in field cropping systems. This is a reflection of the widely adopted approach of varying only one or possibly two nutrients at a time in field experimentation. Without factorial designs involving a numbe

犬儒主義者

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動脈

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種子

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財主

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